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Which Cogent rear shock upgrade for DR650

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I would appreciate input from folks with experience regarding the basic Cogent stock shock upgrade (hard coating etc), the Cogent stock shock upgrade with the thicker shaft, and the Cogent Mojave shock? How would performance compare? The basic stock shock upgrade with a new spring costs about $160 less than the Mojave after all shipping costs are accounted for. The stock upgrade with the thicker shaft/new spring and the Mojave cost about the same. I will be riding the COBDR and similar trips with some road time. Thanks for your input/help in making a decision.

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zig,

 

Here is what I have read. The complete Cogent Mojave shock costs $640. The RT assembly above cost $400 as you said, then you add a different spring and oil for $145 and you install the oil and RT assembly into the stock shock body. You save $95 but you are using the stock body which some say may suffer from lack of longevity (thus the hard coating that Cogent has applied on their stock rebuild options). If you don't need a different spring that would be a savings. I need a heavier than stock spring unfortunately. So in my case, the Mojave seems like an OK deal and I can try to sell the stock shock and spring to recoup some cost. What's your perspective on this?

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I went with the Cogent drop in shaft on my DR and did the install myself.  At that time it was much cheaper than it is now.  IMO I prefer the bladder design of the stock shock over the emulsion design of the Cogent Mojave.  And if you do regular services the hard anodizing option is not needed.  Bang for the buck the drop in shaft will offer probably offer better overall performance over the Mojave.  Now if you went with the Mojave Pro, that's a different story.  

 

I have rode my DR back to back with my brothers DR which has the Mojave shock.  I though my bike got a little better traction is some stutter bumps.   

 

But that being said his Cogent DDC dampers in his forks are much better than my Race Tech Emulators. 

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zig,

 

Here is what I have read. The complete Cogent Mojave shock costs $640. The RT assembly above cost $400 as you said, then you add a different spring and oil for $145 and you install the oil and RT assembly into the stock shock body. You save $95 but you are using the stock body which some say may suffer from lack of longevity (thus the hard coating that Cogent has applied on their stock rebuild options). If you don't need a different spring that would be a savings. I need a heavier than stock spring unfortunately. So in my case, the Mojave seems like an OK deal and I can try to sell the stock shock and spring to recoup some cost. What's your perspective on this?

 

On ProCycles web site a rebuild shock with a Race Tech or Cogent shaft is with in $10.  Both require a different spring.  But the Race Tech has the clevis drilled for the factory lower option (slight edge to RT there) so it's more like "who do you want to go with?" deal, and I've never had a problem with RT ~ so I still favor them.

 

The base Mojave shock doesn't have a reservoir and as a result it will be prone to over heating under off road use, but will be fine on the road.  It might even look pretty cool on a custom DR that's built purely for on road use or custom bike shows.  The Mojave Pro Series looks nice but for most will not be any better than the stock shock with either one of RT or Cogent's replacement shafts.

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zig, How important is the thicker shaft? The lesser cost Cogent rebuild uses the stock shaft while the more expensive rebuild uses Cogent's thicker shaft. I am going to be a dirt road rider, not very aggresive.

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I don't see a problem with any of them unless you will be riding lots of whooped out desert and trails where the 400 would have been the better option.

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zig, How important is the thicker shaft? The lesser cost Cogent rebuild uses the stock shaft while the more expensive rebuild uses Cogent's thicker shaft. I am going to be a dirt road rider, not very aggressive.

 

Thicker shock shafts favor aggressive riders in extreme conditions like supercross, long high speed whooped out off-road sections or even heavy bikes doing something they were not completely designed for.  This is because as the shock valving is forced through the oil the shaft can flex which can lead to inconsistent damping and seal failure.

 

If you are not riding aggressively then you will be fine with the stock shaft.

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